Title Page
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Project and Turbine Number:
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Customer:
- NextEra
- MEC
- Leeward
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Site:
- Horse Hollow 3
- Red Canyon
- Cap Ridge
- Victory
- Sweetwater 2
- Sweetwater 3
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Generator Serial Number:
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Conducted on
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Prepared by
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Personnel
- Anthony Noble
- Patrick Fisher
- Shane Griffin
- Nick Addis
- Lane Tillman
- Devyn Harvey
- Daniel Camacho
- Tyler Franich
- Lynn Lawson
- Josh Melindez
- Nathan Bronson
- Christian Cooper
- Tim Hanson
- Danny Lebaron
- Henry Lebaron
- James Ray
- Jaremy Ray
- Justin Ray
- Ryan Ray
- Chuck Roundy
- Vernon Stubbs
- Paul Jungmeyer
- Brandon Stephens
- Mike Morton
- Richard Jenkins
- Alvin Carroll
- Mike Lozano
- Justin Mitchell
- Ryan Pearl
- Vernon Stubbs Jr
- Derek Stubbs
- Jimmy Peacock
- Manny Cordova
- Nick Parsons
- Scott Janzen
- David Hanson
- Devin Pitts
- Dustin Williams
- Phillip Cortez
- Stasi Rogers
- Max Palma
- Travis Stubbs
- Nathen Bronson
- Aaron Carroll
- AJ Arthur
- Edward Romero
- Jethro LeBaron
- Geronimo LeBaron
- Jerry Garcia
- Tracey Butts
- Michael Stull
- Lawrence Bartley
- Ram Garcia
- Jarvis McCann
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Additional Personnel
Job
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Tolerances
Bearing Journal DE/NDE
150 (+.040/-0.015
Bearing Housing DE/NDE
320 (+0.036)-0
Heater Resistant: Roughly 400 Ohms for Hitachi. Roughly 500Ohms for Winergy and Lohers.
PT100's Resistance: Roughly 100 Ohms
Slip Ring run out: <0.2mm
1. Generator Details:
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Serial Number
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Name Plate
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Generator Type
- Hitachi
- Vem
- Winergy
- Loher
- Toshiba
2. Generator Exterior
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Was the shock sensor activated?
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Generator Conditon Tests:
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PT 100 Sensors and Generator Heaters passed Resistance Test?
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Generator Fans operating properly?
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Micro Brush Switches Pass initial continuity test?
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If no, check off when corrected.
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Initials
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Micro Brush Arms are undamaged?
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If no, check off when corrected.
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Initials
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Passed Pre-Refurb AWA test on both stator and rotor?
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Passed Post-Refurb AWA test on both stator and rotor?
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Shaft run out of spider within .05mm tolerance?
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CMS Holes drilled on both NDE and DE bearing end plates?
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Finished photos of CMS with paint removed
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Exterior Before
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Findings
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Exterior After
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Completed:
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Initials
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Stator Box Before
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Stator Box After
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Completed:
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Initials
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Rotor Box Before
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Rotor Box After
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Completed:
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Initials
3. Brush Box
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Brush Box Before
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Brush Box After
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Completed:
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Initials
4. Brushes and Springs
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Are the brushes the right brushes for the generator?
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Replace brush springs
5. Slip Ring
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Original Slip Ring SN
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If reusing original slip ring, has it passed the Resistance test and is with in the phase/ground ring wear tolerance?
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Original Slip Ring SN
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Slip ring run out when assembled: K,L,M,G
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Is the slip ring runout within spec?
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Check when corrected
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Initials
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Replacement Slip Ring SN
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Replacement SN
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Provide slip ring runout for K,L,M,G rings
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Are all joints tightened to required torqued, checked and paint penned?
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Initials
5. Generator - Internal
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Drive End Internal Before
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Drive End Internal After
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Completed:
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Initials
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Non-Drive End Internal Before
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Non-Drive End Internal After
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Completed:
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Initials
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Are the interior stator cables free of damage/defects?
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Any debris in the interior of the generator?
6. Bearings
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Note: The serial Number is not the 6330,6326' or the 6332. These are the model number. The serial is usually etched in and is 2 to 5 numbers.
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Drive end Original Bearing SN
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Initials
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Drive end Replacement Bearing SN
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DE Bearing Housing width and journal in tolerance?
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Completed:
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Initials
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NDE Original Bearing SN
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Initials
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NDE Replacement Bearing SN
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NDE Bearing Housing width and journal in tolerance?
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Completed:
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Initials
7. Wye Ring
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Note: WYE ring repair not required on Vem, Loher or Winergy.
WYE ring repair required on Hitachi -
Did it require a wedge repair?
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Did the generator require a re-lead?
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Does the generator require a wye ring retrofit/repair?
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Exposed Connections prior to drilling or cutting (3)
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Crack(s) found?
- Single
- Multiple
- No
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Pictures of Crack(s)
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Initials
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Isolated Connections with silver plating (3)
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Initials
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Pictures of Shim Stacks(3)
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Bolt length position 1:
- 50mm
- 55mm
- 60mm
- 65mm
- 70mm
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Shims for position 1:
- 6.35mm
- 6.35mm
- 7.11mm
- 7.11mm
- 7.87mm
- 7.87mm
- 8.63mm
- 8.63mm
- 9.65mm
- 9.65mm
- 10.41mm
- 10.41mm
- 11.17mm
- 11.17mm
- 11.93mm
- 11.93mm
- 12.70mm
- 12.70mm
- 13.46mm
- 13.46mm
- 14.47mm
- 14.47mm
- 15.24mm
- 15.24mm
- 16.00mm
- 16.00mm
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Bolt length position 2:
- 50mm
- 55mm
- 60mm
- 65mm
- 70mm
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Shims for position 2:
- 6.35mm
- 6.35mm
- 7.11mm
- 7.11mm
- 7.87mm
- 7.87mm
- 8.63mm
- 8.63mm
- 9.65mm
- 9.65mm
- 10.41mm
- 10.41mm
- 11.17mm
- 11.17mm
- 11.93mm
- 11.93mm
- 12.70mm
- 12.70mm
- 13.46mm
- 13.46mm
- 14.47mm
- 14.47mm
- 15.24mm
- 15.24mm
- 16.00mm
- 16.00mm
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Bolt length position 3:
- 50mm
- 55mm
- 60mm
- 65mm
- 70mm
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Shims for position 3:
- 6.35mm
- 6.35mm
- 7.11mm
- 7.11mm
- 7.87mm
- 7.87mm
- 8.63mm
- 8.63mm
- 9.65mm
- 9.65mm
- 10.41mm
- 10.41mm
- 11.17mm
- 11.17mm
- 11.93mm
- 11.93mm
- 12.70mm
- 12.70mm
- 13.46mm
- 13.46mm
- 14.47mm
- 14.47mm
- 15.24mm
- 15.24mm
- 16.00mm
- 16.00mm
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Completed Installation
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Completed:
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Initials
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Notes
8. Balance
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Note: Balancing not required on Vem, Loher or Winergy.
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Does the generator require balancing?
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Initial Imbalance (mm/s)
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Initial Imbalance (mm/s)
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Weight(s) Applied (g) and location:
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Final Balance Amplitude < 0.08 mm/s
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Final Balance
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Completed:
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Initials
9. High Speed Coupler
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KTR 80.00mm (+-.30)
Flender Flush -
Before
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After
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Completed:
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Initials
10. Additional Notes/Findings
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Notes
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Findings
